if exist .\PSI\bin rd /s /q .\PSI\bin 
if exist .\PSI\obj rd /s /q .\PSI\obj

if exist .\PSI2015.v11.suo attrib -H .\PSI2015.v11.suo
if exist .\PSI2015.v11.suo del .\PSI2015.v11.suo /q

if exist .\PSI2015.v12.suo attrib -H .\PSI2015.v12.suo
if exist .\PSI2015.v12.suo del .\PSI2015.v12.suo /q

del .\PSI\download\*.* /q
del .\PSI\upload\*.* /q

pause